Non-isocyanate polyurethane thermoreversible hydrogel and method for its preparation
US12195572B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Apr 14, 2019 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Nov 28, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2351/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to non-isocyanate polyurethane thermoreversible hydrogel comprising poloxamers, aliphatic di-urethanes, aliphatic di-esters and polyethylene glycol and to a method for their preparation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.